add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/s390/net/ctcm_mpc.c
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@@ -357,6 +357,7 @@
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 		/*fsm_newstate(grp->fsm, MPCG_STATE_XID2INITW);*/
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 		if (callback)
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 			grp->send_qllc_disc = 1;
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+		fallthrough;
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 	case MPCG_STATE_XID0IOWAIT:
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 		fsm_deltimer(&grp->timer);
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 		grp->outstanding_xid2 = 0;
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@@ -624,8 +625,6 @@
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 		ch->th_seq_num = 0x00;
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 		ctcm_clear_busy_do(dev);
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 	}
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-
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-	kfree(mpcginfo);
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 	return;
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@@ -1205,10 +1204,10 @@
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 						CTCM_FUNTAIL, dev->name);
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 			priv->stats.rx_dropped++;
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 			/* mpcginfo only used for non-data transfers */
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-			kfree(mpcginfo);
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 			if (do_debug_data)
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 				ctcmpc_dump_skb(pskb, -8);
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 		}
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+		kfree(mpcginfo);
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 	}
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 done:
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@@ -1469,6 +1468,7 @@
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 		if ((fsm_getstate(rch->fsm) == CH_XID0_PENDING) &&
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 		   (fsm_getstate(wch->fsm) == CH_XID0_PENDING))
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 			break;
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+		fallthrough;
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 	default:
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 		fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
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 	}
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@@ -1521,8 +1521,7 @@
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 	unsigned long	saveflags = 0;
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 	spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags);
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-	rc = ccw_device_start(ch->cdev, &ch->ccw[15],
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-					(unsigned long)ch, 0xff, 0);
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+	rc = ccw_device_start(ch->cdev, &ch->ccw[15], 0, 0xff, 0);
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 	spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags);
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 	if (rc != 0) {
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@@ -1795,8 +1794,7 @@
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 	}
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 	fsm_addtimer(&ch->timer, 5000 , CTC_EVENT_TIMER, ch);
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-	rc = ccw_device_start(ch->cdev, &ch->ccw[8],
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-				(unsigned long)ch, 0xff, 0);
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+	rc = ccw_device_start(ch->cdev, &ch->ccw[8], 0, 0xff, 0);
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 	if (gotlock)	/* see remark above about conditional locking */
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 		spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags);
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@@ -1991,7 +1989,6 @@
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 		}
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 		break;
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 	}
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-	kfree(mpcginfo);
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 	CTCM_PR_DEBUG("ctcmpc:%s() %s xid2:%i xid7:%i xidt_p2:%i \n",
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 		__func__, ch->id, grp->outstanding_xid2,
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@@ -2052,7 +2049,6 @@
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 		mpc_validate_xid(mpcginfo);
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 		break;
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 	}
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-	kfree(mpcginfo);
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 	return;
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 }
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..
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@@ -2089,6 +2085,7 @@
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 			grp->estconnfunc = NULL;
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 			break;
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 		}
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+		fallthrough;
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 	case MPCG_STATE_FLOWC:
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 	case MPCG_STATE_READY:
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 		grp->send_qllc_disc = 2;